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Search Publications

NIST Authors in Bold

Displaying 9901 - 9925 of 17272

An Architecture for Intelligent Manufacturing Control

February 1, 1985
Author(s)
Charles R. McLean
… currently under construction at the National Bureau of Standards (NBS), is designed to support research in factory automation standards. One of the expressed goals of the NBS Automated …

Building a Spring-Transport Mechanism for Spinning Rotor Gauges

April 3, 2015
Author(s)
James A. Fedchak, Julia K. Scherschligt, Makfir Sefa, Nick Phandinh
… Spinning rotor gauges (SRGs) are widely used as transfer standards in inter-laboratory comparisons and as secondary standards by calibration laboratories. In both of these …

Simulation of Residential CO Exposures from Portable Generators with and without CO Hazard Mitigation Systems Meeting Requirements of Voluntary

February 16, 2022
Author(s)
Steven Emmerich, Brian Polidoro, Matthew Hnatov, Janet Buyer, Matthew Brookman
… documents work performed by the U.S. National Institute of Standards and Technology (NIST) and the U.S. Consumer Product … mitigation requirements that were adopted in two voluntary standards in 2018. These two ANSI-approved standards are ANSI/PGMA G300-2018, Safety and Performance of …

Improving the Uncertainty of Photomask Linewidth Measurements

May 1, 2004
Author(s)
J Pedulla, James E. Potzick, Richard M. Silver
… The National Institute of Standards and Technology (NIST) is currently developing a … expected uncertainty of calibration than the previous NIST standards (SRMs 473, 475, 476). In calibrating these standards, optical simulation modeling has been used to …

NVLAP Federal Warfare System(s)

July 21, 2021
Author(s)
Bradley Moore, John Matyjas, Raymond Tierney, Jesse Angle, Jeannine Abiva, Jeff Hanes, David Dobosh, John Avera
… ISO/IEC 17025, laboratory, management system, NVLAP, standards, testing, DoD …

NVLAP Cryptographic and Security Testing

June 30, 2021
Author(s)
Bradley Moore, Beverly Trapnell, James F. Fox, Carolyn French
… ISO/IEC 17025, laboratory, management system, NVLAP, standards, testing, CMVP …

Development of a new reversed-phase liquid chromatography and fluorescence method with multichannel selective wavelength detection for the analysis of benzo[a]pyrene and six of its isomers

September 28, 2018
Author(s)
Walter B. Wilson, Stephen A. Wise, Lane C. Sander
The baseline separation of benzo[a]pyrene in complex samples via reversed-phase liquid chromatography (RPLC) is particularly challenging due to the potential for interferences from other molecular mass 252 (MM, g/mol) polycyclic aromatic hydrocarbons (PAHs

Optical-to-RF Frequency Synthesis: Application Priorities for Ultra-low Phase Noise

October 18, 2015
Author(s)
David A. Howe, Archita Hati, Craig W. Nelson, Lora L. Nugent-Glandorf
We describe operational challenges and progress of optical frequency-comb dividers (OFDs) that synthesize RF signals from the optical domain. Our priorities include: (1) ultra-low phase-noise, (2) continuous operation, and (3) broadly low Allan deviation.

Blackbody effects in the Yb optical lattice clock

May 24, 2012
Author(s)
Andrew D. Ludlow, Jeffrey A. Sherman, Nathan D. Lemke, Kyle P. Beloy, Nathan M. Hinkley, M. Pizzocaro, Richard W. Fox, Christopher W. Oates
We report a high accuracy measurement of the differential static polarizability for the clock transition in a Yb lattice clock, a key parameter for determining the blackbody BBR) shift of this transition. We further report efforts to determine the 6s5d3D1

Ground-based observatory operations optimized and enhanced by direct atmospheric measurements

July 22, 2010
Author(s)
John T. McGraw, Peter C. Zimmer, Azzam Mansour, Dean C. Hines, Anthony B. Hull, Lisa Rossmann, Daniel C. Zirzow, Steven W. Brown, Gerald T. Fraser, Keith R. Lykke, Allan W. Smith, John T. Woodward IV, Christopher W. Stubbs
Earth's atmosphere represents a turbulent, turbid refractive element for every ground-based telescope. We describe the significantly enhanced and optimized operation of observatories supported by the combination of a lidar and spectrophotometer that allows
Displaying 9901 - 9925 of 17272
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